In continuum mechanics, stress is a physical quantity that describes forces present during deformation. For example, an object being pulled apart, such as a stretched elastic band, is subject to tensile stress and may undergo elongation .

Mar 16, 2025 · Stress is a quantity that describes the magnitude of forces that cause deformation. Stress is generally defined as force per unit area. When forces pull on an object and cause its elongation, like the stretching of an elastic band, we call such stress a tensile stress. When forces cause a compression of an object, we call it a compressive stress.

Stress is the average force per unit area that a particle of a body exerts on an adjacent particle, across an imaginary surface that separates them. The formula for uniaxial normal stress is: where σ is the stress, F is the force and A is the surface area. In SI units, force is measured in newtons and area in square metres.

Mar 25, 2021 · Stress and strain are two quantities that are used to define the nature of the applied force and resulting deformation. In this article, we will be studying Definition, Formula, Types, Curve Diagram, and Differences in stress and strain .

Stress is the ratio of applied force F to a cross section area-defined as "force per unit area". tensile stress - stress that tends to stretch or lengthen the material - acts normal to the stressed area; compressive stress - stress that tends to compress or shorten the material - acts normal to the stressed area

Stress is the measure of an external force acting over the cross sectional area of an object. Stress has units of force per area: N/m 2 (SI) or lb/in 2 (US). The SI units are commonly referred to as Pascals, abbreviated Pa.

Oct 13, 2023 · Stress and strain are fundamental concepts in engineering, and in strength of materials in particular, that describe how an object responds to applied loads. This page covers the basics, which are also summarised in the following video: What is Stress?

What is stress in physics? Stress is the force acting on the unit area of a material. Learn about its definition, formula, units, types - longitudinal stress, bulk stress, shear stress along with practice questions.

In engineering and mechanics, stress is the internal resistance of a material to an applied load, expressed as force per unit area. It quantifies how intensely a material experiences force and helps predict failure under various loading conditions.

Mar 4, 2025 · Stress, in physical sciences and engineering, force per unit area within materials that arises from externally applied forces, uneven heating, or permanent deformation and that permits an accurate description and prediction of elastic, plastic, and fluid behaviour.